Crushing-mill.



A. KNAPPENB-ERGER.

CRUSHING MILL.

APPLIOATION FILLED NOV. 16, 1910.

3 SHEETS-SHEET 2.

A. KNAPPBNBERGER. (musmm MILL.

I APPLICATION FILED NOV". 16, 1910. 1,003, 362 Patented Sept. 12, 1911.

3 SHEETS-SHEET 3.

TED STATE-S PATENT ALEXANDER KNAPPENBEBGER, or SIEGFRIED, PENNSYLVANIA, assieNoni'rofliofiN J. KOCI-IER AND JOHN KNAPPENBERGER, BOTH or NORTHAMPTON; PENNSYLV Q.

CRUSHING-MILL. 1'. 1.-

.To all whom it may concern."

Be it known that I, ALEXANDER KNAPPEN- BERGER, a. citizen of the United States, residing at Siegfried, in the county of Northampton and State of Pennsylvania, have invented new and useful Improvements in Crushing-Mills, of which the following isa specification.

This invention relates to improvements in.

crushing mills such as are usually employed for crushing cement, clinker and the like.

- One object of the invention is the-"prov sion of a crushing mill including a rotaiiizle platform supporting the crushing rollers and underlying a hopper and having openings through which'the materialto be onto the ring die.

A further object is the provision of an imroved mountin and bearincr for the crushing rollers.

which will more fully hereinafter appear,

the present invention consists in certain novel details of construction and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings and more particularly pointed out in the appended claims; it being understood that various changes in the form, proportion, size, and minor details of the device may be made, within the scope of the appended claims, without departing from the spirit or sacrificing any of the advantages of the invent-ion. p 5

In the accompanying drawings, forming part of the specification; Figure 1 is a vertical sectional View of the device. Fig. 2 is a sectional plan View approximately on the line 22 of Fig. 1. Fig. 3 is a detail plan view of the bed with the'rollers removed. Fig. 4 is a detail perspective of one of the rollers and its shaft. Fig. 5 is a detail perspective of one of the roller hangers showing a fan blade secured thereto.

Similar numerals of reference are employed to designate corresponding parts throughout.

The bed comprises a circular platform designated by the numeral 5'.- This member is provided .adjacentilto its periphery with a Specification of Letters Patent. i Patenfed septj 1911, Application filed November 16, 1919; Serial 110,592,691.

plurality of spaced al enate-shaped vertical openings 6, and depending; from thedower face of the platformis a chute. The :chute is made up of outer and inner'sections 7 and -8, the outer section 8 being suitably-secured to thelower face of-the platform and'at the outer sides of the openings 6,=while-the.inner section 7 1s concentricxwith the outer. section 8 and isarranged at; the inner sides of the openings 6, the crushed material passing,in

a manner to be described .later through the openings 6. and thence. through the space between'the sections 7 and 8.

Rising from the upper face of theplatform 5 are concentrically disposed plates 9 and 10, the .said plates 9 and lObemgarranged on' the opposite sides of-the openings *6, the inner of said'platesbeing made up: of a plurality of sections corresponding inlength to the distance bet-ween the adjacent ends of the openings 6. With, this construction it will be manifest thatv the crushed material passing between the adjacent ends of the nection between the platform 13"and plates 9 and 10 is established by means of concentrically disposed circular wa-llsofwire netting designated by .the numerals 14 and-15 which form the body'ofthe crushingichamber. By reference n'o-w tofthe drawings it will be seen that the'bed 5is-provide'd on its upper face witliav concentrically disposed circular channeh'the floor of which is inclined upwardly and] outwardly as shown at 1 6. The outer or highest point .of the floor of the channel lies adjacent to the inner sides of the openings '6." Arranged within the channel ring die,'- tl1e"said ring die comprising-fa bearing portion 17 shaped to the configuration of .the fioor 16 of the channel, .but somewhat greater in width than the width'of saidfloon'sothat when its inner side bears on the inner side ofv the channel the ou'terside thereof will .ioo

' jthicknes's. thanfthe width of the inner side the inner concentric plate 10." The hearing portion: ,17Lis somewhat less in 7 .wall of the channel so that whenthe inner side of the bearing portion bears on said inner side wall a space will exist between the upper-surface of the-bed and the .upper' surface of the inner side portion of the bear- :1 ing plate, for apurpose to be, described 10 later. A V

Rising from the outer side portion of the bearing-plate 16 is a vertical flange 18 fhav l a plurality of spaced vertical recesses to aline withtlie'spacebetween the adjacent ends of the sections' of the inner plate 10.

r ..With this constructionit' will-be manifest v'when th material is= crushed in a" manner tolbe presently described on the upper sur= ,I-face-of the portion" '17 of the ringzdie'and 0:

passes through the openings in the ;flangc [portion 18 thereof itwill fall into the chute fin theman'ner beforecdescribed. a

@The drive shaftlis' designated'by thenn meral 19fand=is 'journaled in suitable box,-

injthe 'central' portion of the head block 1 12-ua'nd; platform13.-' vA pulley 20::is keyed" I r11orTotherwisesecured' to the shaft 119 M; a

fipoint belowJ-thehead blockz12. The'lower endfof the shaft j-19-eXteI1ds' to themedial portion of the space between the platform" -.z Fixedly-secured t'o'the lower end portionof; the shaft 19 is a collar n of oppositelydisposed lateral sockets. What will subsequently be termed hangers .are

inner endst-ofwhich are-secured in the sock-- -ets of: the collar, and theouter ends of mwhich terminate in downwardlyi andout-.-"

21 having a pair shown to include horizontal portions 22, the

Wardly inclined extensions 23, the lower .I ends of which extend to points a trifle above 7 the =concentric plates 9-and 10, and adjacent jtotheinner wall I A ,Theflbedfi is formed'witha central opening, and surrounding this opening is abear-. 7 ing block 24, the upper surface of which is beveled. v as, shown at. 25. Q Extending through the opening in the bed 5 is a shaft 26,. the lower.,endportion of which extends, 59

beyond the lower face of the bed 5 and is screw-threaded to engage with a nut 27.

:The} upper end portion of the shaft 26 is providedwith- ,an axially threaded bore.

.= Arranged on that portion of the'shaft extending ahovet-he; upper face of the bed 5',

is; afrustp conicalshaped block 28- and 1 housing. the blockf 28 isa hollow frusto-coni 'ca'l-shapedboxing 29, the lower end portion, of which is] provided. with an inturned flange 30 to bear on the beveled surface 25 of the bearing-,bloclr-24. The upper end 7 portion of the boxing 29 is provided with top plate31, "having a central opening to to f receive the upper end portionof the shaft- Screwed'into1,.the[ threaded bore of the shaft 26 is the shank 32 of a bolt, the head 33 ofsaid bolt bearing onthe top late 31 r and cooperating with the upper: en I of the block 28 to hold the top plate 31 against vertical movement, the bolt, however, not preventing rotatien of the boxing 29. The

boxing- 29 is provided with apair of diametrically o posite openings which receive the inner on s of shafts 34 an'd 35, the outer ends of 'said shafts beingjournaled in the lower end portions '23 of the hangers.

"Owing to thefrelative lengths of the boxing 29and portions 23 of the hangers the shafts 34 -and 3'5"will 'incliine upwardly from the boxing 29. Th'e 'shafts 34 and 35 are formed with crushing rollers or-wheels 36 and 37., the width of the tread surface of these rollers being somewhat less in width than that of the-portion 17 of the ring die,t-he said rollers being so positioned that their 'outer sides will bear-on thefiange 18 of the ring die,' while the spacewill' exist between the Y inner side of .said rollers and the adjacent side'of' the channel 'of'thebed'5 as clearly shown in Fig. 1. Inorder that a maximum amount of the outerside'of the rollers 36 and 37 will bear'on the inner surface of the 'fiange 18 offtho ring die,'th'e outersurfaces of said rollers are curved to correspond to the curvature of the saidflang'e 18 so also are thegt-read surfaces of the rollers shaped to correspond to the curvature and inclination of the portion 17 of the ring die.

Surrounding the lower end portion of the shaft 19 and supported from the horizontal portion22 of the hanger is a circular table 38, the said-table being provided adjacent to-its periphery with diametrically disposed vertical openings 39 and 40; Extending downwardly and outwardly from the openings 39and 40 are spouts 42 and 43, the axial portions of said spouts lying in an inclined plane with the middle of the hearing portion 17 of the ring die, the-said spouts being so positioned that'the material 47 and 48, the lower end portionsof which extend over the upper side of the wall-44 of the table so that the material passing therethrough will fall. onto the table :38.v Inclining upwardly and inwardly from the upper sides of the openings 5 and 46 are tubes 4? and 50, the upper or inner ends of which means of the shaft 19 nooaaee lead into the lower end of a hopper 51. With this construction it will be manifest when the material to' be crushed is inserted into the hopper 51 it will pass through the tubes 49 and 50, thence through theopenings 45 and 46 into the tubes I? and 48 and onto the table 38. vVhen the latter is rotated by e 'material on the table 38 is thrown outilva dly by centrifugal, force and passed through the openings 3%} and 4:0 and into the spouts 4:2 and 43 through which it will fall onto the bearing portion 17 of the ring die to be crushed by the rollers 36 and 37 as the latter rotate.

It is manifest that portion of the material to be crushed will fall onto the platform 5 and into the space between the channel and bearing block 24. In order that this material may be conveyed to the bearing plate the shafts 34 and 35 are provided between the inner sides of the rollers and their inner ends with spiral conveyers 53 and 5%. These conveyers are fixedly secured to the shafts in any preferred manner, and it will be manifest as the shafts rotate that the ma terial falling on the bed 5 will, by the action of the conveyers be moved outwardly and onto the bearing portion 17 of the ring die, the said material first falling into the space. between the side wall of the channel and inner sides of the rollers from whence it will i be forced by new material being added into a position to be operated'upon by the rollers 36 and 37. i

It will be manifest that during the opera tion of. crushing more or less dust will rise as the material falls on the ring die or onto the platform 5. In order that this dust may be agitated and finally forced through the inner wall of screen wire fan blades 56 and 57 are. provided. These members are preferably formed of single pieces of sheet metal right triangular in contour and are secured in .inverted position to the outer sides of the portions 23 of'the hangers,'the said blades being suitably shaped to direct the dust through the inner wall 15 from whence it will pass either from the outer wall or downwardly into'the space between said walls and finally into the chute.

From the foregoing, it evident that I. have provided a device which is comparatively simple in structure and inexpensive to manufacture, embodying few parts and, these so arranged that the danger of derangement will be reduced to a minimum.

I claim y 1. In a crushing mill, a bed plate provided with a plurality of spaced vertical openings, a chute depending from the lower ends of said openings, a circular-plate positioned onv the upper side of the bed plate and at the outer sides of said openings, and

a second circular plate formed of a plurality of sections positioned between the adjacent ends of said openings and at the inner sides thereof, a ring die'positioned on' the upper face of-said bed plate and having a vertical portion provided with openings alining with the spaces between the adjacent ends of the sections of said inner wall, rollers positioned to operate on said bed plate, and means for rotating said rollers.

2. In a crushing mill, av bed plate, a ring diepositioned on the upper face of said b d plate, 'a rotatable boxing positioned centrally of said bed plate, a drive shaft, a

hanger secured to said drive shaft, a rollerclined floor, and further provided with an outlet opening located on the said channel,-a

ring die having an inclined portion bearing on the inclined floor of the channel, and a vertical portion provided with anoutlet opening communicating with the outlet.

opening of the bed plate, a. rotatable bearing member positioned centrally" of the bed plate, a drive shaft, a hanger connected with the drive shaft, and a, roller positioned to bear on the ringdie andhavinga shaft with its opposite ends journaled' in saidhangerand bearing member.

4. In a crushing mill, aibed'plate, a die positioned on said bed plate, a crushing roller adapted to operate over said die, and a coiweyer carried by the crushing roll and adapted to forcethe material on the bed plate on to the die.

5. In a crushing mill, a bedplate, a ring die positioned on the upper face of said bed plate, a criishing roll adapted to travel around over the ring die, a bearing-shaft for said roller, and a conveye'r carried by the bearing shaft and adapted to travel over the 'bed plate.

6. In a crushing mill, a bed plate, a die. positioned upon the bed plate, shaft bear ings,ra shaft journaled therei'n, a crushing member carried by the shaft and adapted to.

' ALEXANDER KNAPPENBEItGEE.

Titnesses:

Sanction Sense, nan. W. 

